Endoscope operating handle and endoscope

Abstract

The invention provides an endoscope operating handle and an endoscope, and relates to the technical field of endoscope equipment. The endoscope operating handle comprises a shell, a drum wheel, a deflector rod, a button, a locking disc and a brake pad, the drum wheel is provided with a connecting shaft, the drum wheel is rotatably installed on the shell, the connecting shaft penetrates out of the shell to be fixedly connected with the deflector rod, the brake pad and the locking disc are arranged on the connecting shaft in a sleeving mode, the locking disc is located on the side, away from the drum wheel, of the brake pad, and the button is installed on the shell in a pressing mode. The button is constructed to push the locking disc to rotate when pressed, so that the brake pad presses the drum wheel to lock the drum wheel, or the brake pad is loosened from the drum wheel, and the drum wheel can rotate along with shifting of the shifting rod. The drum wheel can be driven to rotate by shifting the shifting rod so as to adjust the moving posture of the endoscope, the locking disc is driven to rotate by pressing the button so as to adjust the friction force between the brake pad and the wheel body of the drum wheel, unlocking and locking of the drum wheel are achieved, an operator can operate with one hand, operation is convenient, and the use experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscope equipment, and in particular to an endoscope operating handle and an endoscope. Background Art

[0002] The endoscope includes an operating part and an insertion part. Usually, the doctor holds the operating part with one hand to control the bending direction of the insertion part, and holds the insertion part with the other hand to insert the endoscope. Especially during surgical treatment, the doctor needs to take a biopsy or perform electrosurgical cutting on the lesion. The doctor is required to hold the angle lever with one hand to keep the bending part at the end of the endoscope aligned with the lesion, and hold the insertion part with the other hand to stabilize the lens to ensure that the high-frequency electrosurgical cutting accurately cuts the lesion. The operation process requires the doctor's right thumb to keep exerting force on the angle lever to stabilize the bending angle. Long-term operation will make the doctor feel tired. Summary of the invention

[0003] The present invention provides an endoscope operating handle and an endoscope, which are used to solve the defects in the prior art that doctors feel tired after long-term operation and have poor user experience.

[0004] The present invention provides an endoscope operating handle, comprising: a shell, a drum wheel, a lever, a button, a locking disk and a brake pad, the drum wheel has a connecting shaft, the drum wheel can be rotatably installed on the shell, the connecting shaft passes through the shell and is fixedly connected to the lever, the brake pad and the locking disk are both sleeved on the connecting shaft, the locking disk is located on the side of the brake pad away from the drum wheel, the button can be pressed and installed on the shell, and the button is configured to push the locking disk to rotate when pressed, so that the brake pad presses the drum wheel to lock the drum wheel, or the brake pad is loosened from the drum wheel so that the drum wheel can rotate as the lever is turned.

[0005] According to an endoscope operating handle provided by the present invention, the inner wall of the shell is provided with a receiving groove, the brake pad and the locking disk are both accommodated in the receiving groove, the groove wall of the receiving groove is provided with an avoidance gap, and the avoidance gap is used for the button to drive the locking disk to rotate; the groove bottom of the receiving groove is provided with a first locking tooth, and the locking disk has a second locking tooth, and the second locking tooth is engaged with the first locking tooth. As the locking disk rotates, the protrusion of the first locking tooth switches between two states: engaging with the recessed state of the second locking tooth and engaging with the protrusion of the second locking tooth.

[0006] According to an endoscope operating handle provided by the present invention, a locking notch is provided on the groove wall of the accommodating groove, a connecting column is protruding on the outer edge of the brake pad, and the connecting column is clamped in the locking notch. During the state switching process between the first locking tooth and the second locking tooth, the brake pad moves along the axial direction of the connecting shaft.

[0007] According to an endoscope operating handle provided by the present invention, the protrusion of the first locking tooth or the protrusion of the second locking tooth has at least one step surface.

[0008] An endoscope operating handle provided according to the present invention also includes a push rod, a ratchet is provided on the outer periphery of the locking disk, one end of the push rod is installed on the button, and the other end of the push rod is abutted against the recess of the ratchet, so that the push rod can push the locking disk to rotate when the button is pressed.

[0009] According to an endoscope operating handle provided by the present invention, the button includes a pressing piece, an elastic piece and a button seat, the shell is provided with a positioning hole, the button seat includes a seat body and a shaft body fixed to the seat body, the shaft body passes through the positioning hole and extends to the outside of the shell, the push rod is rotatably mounted on the seat body, the pressing piece is fixed to one end of the shaft body extending out of the shell, and the elastic piece is clamped between the outer wall of the shell and the pressing piece.

[0010] According to an endoscope operating handle provided by the present invention, the elastic member is a spring, and the spring is sleeved on the portion of the shaft of the button seat extending out of the housing.

[0011] According to an endoscope operating handle provided by the present invention, the lever is provided with a special-shaped hole, and the end of the connecting shaft is inserted into the special-shaped hole to have an interference fit with the lever.

[0012] An endoscope operating handle provided according to the present invention also includes a locking shaft, the connecting shaft has a through hole, the hole wall of the through hole is at least partially provided with an internal thread, the locking shaft is inserted into the through hole, the locking shaft has a threaded section, and the threaded section cooperates with the internal thread.

[0013] The present invention also provides an endoscope, comprising an operating portion and an insertion portion connected to the operating portion, wherein the operating portion has the endoscope operating handle as described above.

[0014] The endoscope operating handle and endoscope provided by the present invention can drive the drum wheel to rotate by turning the lever to adjust the movement posture of the endoscope. By pressing the button, the locking plate is driven to rotate, thereby adjusting the friction between the brake pad and the wheel body of the drum wheel to achieve unlocking and locking of the drum wheel. The operator can operate it with one hand, which is convenient to operate and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a stereoscopic diagram of the endoscope operating handle provided by the present invention.

[0017] Figure 2 yes Figure 1 One of the exploded schematic diagrams of the endoscope operating handle is shown.

[0018] Figure 3 yes Figure 1 The second exploded schematic diagram of the endoscope operating handle is shown.

[0019] Figure 4 yes Figure 1 A cross-sectional view of an endoscope operating handle is shown.

[0020] Figure 5 It is a structural schematic diagram of the rear shell provided by the present invention.

[0021] Figure 6 It is a structural schematic diagram of the locking disk provided by the present invention.

[0022] Figure 7 It is a schematic diagram of a local state when the protrusion of the first locking tooth and the protrusion of the second locking tooth in the endoscope operating handle provided by the present invention are in abutment with each other.

[0023] Figure 8 It is a schematic diagram of a local state when a protrusion of a first locking tooth and a depression of a second locking tooth in an endoscope operating handle provided by the present invention are in abutment with each other.

[0024] Fig. 9 It is an installation cross-sectional view of the pressing piece provided by the present invention.

[0025] Fig.10 It is a partial structural schematic diagram of the pressing member provided by the present invention in a non-pressing state.

[0026] Fig.11 yes Fig.10 The structure shown is a schematic diagram of the structure when the pressing member is in a pressing state.

[0027] Fig.12 It is a schematic diagram of the cooperation of the pressing piece, the drum wheel, the locking disc and the brake pad provided by the present invention.

[0028] Fig.13 It is a schematic diagram of the cooperation between the pressing piece and the front shell provided by the present invention.

[0029] Fig.14 It is a schematic diagram of the installation and matching of the pressing piece, drum wheel, locking disc and brake pad provided by the present invention.

[0030] Fig.15 This is one of the partial structural schematic diagrams of the endoscope operating handle provided by the present invention.

[0031] Fig.16 This is the second partial structural schematic diagram of the endoscope operating handle provided by the present invention.

[0032] Fig.17 This is the third partial structural schematic diagram of the endoscope operating handle provided by the present invention.

[0033] Fig.18 It is a structural schematic diagram of the lever provided by the present invention.

[0034] Fig.19 It is a structural schematic diagram of the drum wheel provided by the present invention.

[0035] Reference numerals: 10. Shell; 11. Front shell; 111. Positioning hole; 12. Rear shell; 121. Mounting hole; 13. Upper cover; 14. Accommodating groove; 15. Avoidance gap; 16. First locking tooth; 17. Locking gap; 20. Drum; 21. Wheel body; 22. Connecting shaft; 23. Inlay; 24. Through hole; 30. Push rod; 31. Special-shaped hole; 40. Button; 41. Pressing piece; 42. Elastic piece; 43. Button seat; 431. Seat body; 432. Shaft body; 44. Push rod; 50. Locking plate; 51. Second locking tooth; 52. Ratchet; 501. First plate body; 502. Second plate body; 60. Brake pad; 61. Connecting column; 70. Locking shaft; 71. Decorative sheet. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The features of the terms "first" and "second" in the specification and claims of the present invention may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0038] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Combine the following Figure 1-Figure 19 The endoscope operating handle of the present invention is described.

[0041] The present invention provides an endoscope operating handle, such as Figures 1 to 4 As shown, it includes a housing 10, a drum wheel 20, a lever 30, a button 40, a locking plate 50 and a brake pad 60. The drum wheel 20 has a connecting shaft 22, and the drum wheel 20 is rotatably mounted on the housing 10. The connecting shaft 22 passes through the housing 10 and is fixedly connected to the lever 30. Figure 4 As shown, the brake pad 60 and the locking plate 50 are both sleeved on the connecting shaft 22, and the locking plate 50 is located on the side of the brake pad 60 away from the drum 20. The button 40 can be pressed and installed on the housing 10. The button 40 is configured to push the locking plate 50 to rotate when pressed once, so that the brake pad 60 presses the drum 20 to lock the drum 20, or the brake pad 60 loosens the drum 20 so that the drum 20 can rotate as the lever 30 is turned.

[0042] like Fig.19As shown, the drum wheel 20 includes a wheel body 21 and a connecting shaft 22, one end of the connecting shaft 22 is connected to the wheel body 21, and the other end extends out of the housing 10 and is fixedly connected to the lever 30. The wheel body 21 and the connecting shaft 22 are integrally formed, the connecting shaft 22 can rotate relative to the housing 10, and a traction wire is installed on the wheel body 21. When the operator pulls the lever 30, the lever 30 drives the drum wheel 20 to rotate, and the rotation of the wheel body 21 drives the traction wire to be retracted and released, thereby adjusting the movement posture of the endoscope end.

[0043] The brake pad 60 and the locking plate 50 are both sleeved on the connecting shaft 22, and the locking plate 50 can move linearly along the axial direction of the connecting shaft 22. Among them, the button 40 can directly push the locking plate 50 to rotate, and can also drive the locking plate 50 to rotate after the transmission of the rocker and gear mechanism.

[0044] During a single press of the button 40, the locking disk 50 rotates by a preset angle. When in use, the operator adjusts the posture of the endoscope through the lever 30. After the adjustment is in place, the button 40 is pressed, and the button 40 pushes the locking disk 50 to rotate. The locking disk 50 pushes the brake pad 60 along the axial direction of the connecting shaft 22 to approach the wheel body 21 of the drum wheel 20, thereby increasing the resistance to the rotation of the wheel body 21, and finally achieving the purpose of locking. When the posture of the endoscope needs to be adjusted, the button 40 is pressed again, and the locking disk 50 rotates by a preset angle. The locking disk 50 releases the brake pad 60, and the resistance between the brake pad 60 and the wheel body 21 is reduced, so that the drum wheel 20 can rotate with the rotation of the lever 30.

[0045] like Figure 1 As shown, the housing 10 includes a front housing 11, a rear housing 12 and an upper cover 13. The front housing 11 and the rear housing 12 are fixedly connected to form a handle-shaped structure with one end open. The upper cover 13 is mounted on the open end by snap-fitting or other fixing methods to seal the installation structure inside the housing 10. The button 40 is mounted on the front housing 11, and the lever 30 is mounted on the side wall of the rear housing 12, so that the button 40 is mounted on the front of the housing 10 and the lever 30 is located on the side of the housing 10. When in use, as shown in FIG. Fig.15 As shown, the thumb of the operator is located at the button 40 for easy pressing, and at the same time, the index finger or the middle finger is located at the lever 30 for easy operation of the lever 30. Thus, the button 40 and the lever 30 can be operated with one hand, and the operation efficiency is high.

[0046] The endoscope operating handle provided in the embodiment of the present invention can drive the drum wheel 20 to rotate by toggling the lever 30 to adjust the movement posture of the endoscope. By pressing the button 40, the locking plate 50 is driven to rotate, thereby adjusting the friction between the brake pad 60 and the wheel body 21 of the drum wheel 20 to achieve unlocking and locking of the drum wheel 20. The operator can operate it with one hand, which is easy to operate and improves the user experience.

[0047] In a specific embodiment, if Figure 4 and Figure 5 As shown, the inner wall of the housing 10 is provided with a receiving groove 14, and the brake pad 60 and the locking plate 50 are both received in the receiving groove 14. The groove wall of the receiving groove 14 is provided with an escape notch 15, and the escape notch 15 is used for the button 40 to drive the locking plate 50 to rotate. Figures 6 to 8 As shown, the bottom of the receiving groove 14 is provided with a first locking tooth 16, and the locking plate 50 has a second locking tooth 51, and the second locking tooth 51 is in contact with the first locking tooth 16. As the locking plate 50 rotates, the protrusion of the first locking tooth 16 switches between two states: in contact with the depression of the second locking tooth 51 and in contact with the protrusion of the second locking tooth 51.

[0048] like Figure 5 As shown, the inner wall of the housing 10 is provided with a circular convex ridge, and the circular convex ridge and the inner wall of the housing 10 are surrounded to form a receiving groove 14. The groove wall of the receiving groove 14 is provided with an avoidance notch 15 for avoiding the push rod 44, which is used to transmit the driving force of the button 40. The first locking tooth 16 has a plurality of staggered protrusions and depressions, and the protrusions and depressions extend along the radial direction of the receiving groove 14. Similarly, the second locking tooth 51 also has a plurality of staggered protrusions and depressions, and the protrusions and depressions extend along the radial direction of the locking disk 50. It can be understood that the second locking tooth 51 can be arranged in a partial area of ​​the locking disk 50, as long as the state switching can be achieved.

[0049] The locking plate 50 rotates, causing the protrusion of the first locking tooth 16 to abut against the protrusion of the second locking tooth 51 (such as Figure 7 As shown in FIG. 1 , the locking plate 50 pushes the brake pad 60 to move out of the receiving groove 14 and then presses against the wheel body 21 of the drum wheel 20, thereby locking the drum wheel 20. The locking plate 50 rotates so that the protrusion of the first locking tooth 16 abuts against the concave of the second locking tooth 51 (as shown in FIG. Figure 8 As shown in the figure, the locking plate 50 releases the brake pad 60, and the wheel body 21 of the drum wheel 20 can rotate freely.

[0050] When the protrusion of the first locking tooth 16 abuts against the protrusion of the second locking tooth 51, pressing the button 40 once can cause the protrusion of the first locking tooth 16 to abut against the depression of the second locking tooth 51. Pressing the button 40 again can cause the protrusion of the first locking tooth 16 to abut against another protrusion of the second locking tooth 51.

[0051] The endoscope operating handle provided in an embodiment of the present invention adjusts the distance between the brake pad 60 and the drum wheel 20 by changing the matching state of the first locking tooth 16 and the second locking tooth 51, so that the drum wheel 20 is locked when the protrusion of the first locking tooth 16 is aligned with the protrusion of the second locking tooth 51, and the drum wheel 20 is unlocked when the protrusion of the first locking tooth 16 is in abutment with the depression of the second locking tooth 51.

[0052] like Figure 5 and Fig.17As shown, the groove wall of the receiving groove 14 is provided with a locking notch 17, and the outer edge of the brake pad 60 is provided with a connecting column 61, which is clamped in the locking notch 17. During the switching process of the matching state between the first locking tooth 16 and the second locking tooth 51, the brake pad 60 moves along the axial direction of the connecting shaft 22.

[0053] In order to prevent the brake pad 60 from rotating with the locking plate 50, a locking notch 17 is provided on the groove wall of the receiving groove 14 to clamp the connecting column 61 on the brake pad 60. When the locking plate 50 rotates, due to the cooperation between the connecting column 61 and the locking notch 17, the protrusion of the first locking tooth 16 rotates from the depression of the second locking tooth 51 to the protrusion of the second locking tooth 51, and the brake pad 60 is pushed along the axial direction of the connecting shaft 22 to approach the wheel body 21 of the drum 20. Similarly, due to the cooperation between the connecting column 61 and the locking notch 17, the locking plate 50 rotates, and the protrusion of the first locking tooth 16 rotates from the protrusion of the second locking tooth 51 to the depression of the second locking tooth 51, and the brake pad 60 is released, and the drum 20 can rotate normally.

[0054] Optionally, the number of connecting posts 61 can be multiple, and multiple connecting posts 61 can be used to provide better guidance for the translation of the brake pad 60. For example, two connecting posts 61 are arranged at intervals along the outer edge of the brake pad 60; correspondingly, the groove wall of the receiving groove 14 is provided with two locking notches 17. The two connecting posts 61 are snap-fitted with the two locking notches 17 in a one-to-one correspondence. Fig.14 , Fig.16 and Fig.17 As shown, three connecting columns 61 are arranged at intervals along the outer edge of the brake pad 60 ; correspondingly, the groove wall of the accommodating groove 14 is provided with three locking notches 17 .

[0055] The housing 10 is provided with a mounting hole 121 for the connecting shaft 22 to pass through, and the mounting hole 121 is located at the bottom of the receiving groove 14. Figure 5 As shown, the mounting hole 121 is located on the rear housing 12 .

[0056] The protrusion of the first locking tooth 16 or the protrusion of the second locking tooth 51 has at least one stepped surface. Among them, only the protrusion of the first locking tooth 16 can have a stepped surface, and the protrusion of the second locking tooth 51 can be respectively set against the protrusion top surface, recess and step surface of the first locking tooth 16 to form multiple gears. Alternatively, only the protrusion of the second locking tooth 51 has a stepped surface, and the protrusion of the first locking tooth 16 can be respectively set against the protrusion top surface, recess and step surface of the second locking tooth 51 to form multiple gears.

[0057] For example, one side of the protrusion of the first locking tooth 16 has a stepped surface, thereby forming a three-stage locking gear on this side of the first locking tooth 16. When the second locking tooth 51 cooperates with the recess of the first locking tooth 16, it is not locked. When the button is pressed once, the protrusion of the second locking tooth 51 moves from the recess of the first locking tooth 16 to the stepped surface of the first locking tooth 16. When the second locking tooth 51 abuts against the stepped surface of the first locking tooth 16, a damping feeling of locking occurs. When the button is pressed a second time, the protrusion of the second locking tooth 51 moves from the stepped surface of the first locking tooth 16 to the top of the protrusion of the first locking tooth 16. When the second locking tooth 51 abuts against the top of the protrusion of the first locking tooth 16, complete locking is achieved. Of course, the first locking tooth 16 can also be provided with two or three stepped surfaces to form a multi-stage locking gear, and the embodiment of the present invention does not specifically limit the number of stepped surfaces. It can be understood that stepped surfaces can be provided on both opposite sides of the protrusion of the first locking tooth 16, thereby forming multiple unlocking gears during the unlocking process.

[0058] Similarly, one or more step surfaces may be provided only on the protrusion of the second locking tooth 51 to form a plurality of locking gear positions.

[0059] Therefore, by providing a plurality of stepped surfaces on the protrusion of the first locking tooth 16 or the protrusion of the second locking tooth, a plurality of different locking force gears are formed to meet the adjustment requirements under different demands.

[0060] In one embodiment, if Figure 3 , Figure 6 , Fig.10 and Fig.16 As shown, the endoscope operating handle also includes a push rod 44, a ratchet 52 is provided on the outer periphery of the locking disk 50, one end of the push rod 44 is installed on the button 40, and the other end of the push rod 44 is abutted against the recess of the ratchet 52, so that the push rod 44 can push the locking disk 50 to rotate when the button 40 is pressed.

[0061] like Figure 6 As shown, the locking plate 50 includes a first plate body 501 and a second plate body 502. The diameter of the first plate body 501 is larger than that of the second plate body 502. The first plate body 501 and the second plate body 502 are connected in a stepped shape. The ratchet teeth 52 are located on the outer periphery of the second plate body 502, and the second locking teeth 51 are located on the side of the first plate body 501 away from the second plate body 502. Fig.12 As shown, the push rod 44 is located in the gap between the first plate 501 and the brake pad 60 .

[0062] When the button 40 is pressed, Fig.11 As shown in FIG. 1 , the push rod 44 moves linearly with the movement of the button 40. Since the end of the push rod 44 abuts against the depression of the ratchet teeth 52 of the locking plate 50, the linear movement of the push rod 44 will push the locking plate 50 to rotate. Fig.10As shown, the push rod 44 moves in a direction away from the locking disk 50. In one embodiment, the push rod 44 falls into the depression of another ratchet 52 under the action of gravity. In another embodiment, an elastic reset member is installed between the push rod 44 and the button seat 43, and the push rod 44 falls into the depression of another ratchet 52 under the action of the resilience of the gravity elastic reset member. Optionally, the elastic reset member is a spring. Therefore, when the button 40 is pressed next time, the push rod 44 will move linearly again to push the locking disk 50 to rotate. Since the movement stroke of the push rod 44 under the action of the button 40 is fixed, the angle of the locking disk 50 rotated in a single time is constant, and the operator can adjust the rotation setting angle of the locking disk 50 by pressing the button 40, and the setting angle is consistent with the angle of the locking disk 50 rotated in a single time.

[0063] like Fig. 9 and Fig.13 As shown, the button 40 includes a pressing member 41, an elastic member 42 and a button seat 43, and the button seat 43 includes a seat body 431 and a shaft body 432 fixed to the seat body 431. The housing 10 is provided with a positioning hole 111, and the shaft body 432 extends out of the housing 10 through the positioning hole 111. The push rod 44 is rotatably mounted on the seat body 431, the pressing member 41 is fixed to one end of the shaft body 432 extending out of the housing 10, and the elastic member 42 is sandwiched between the outer wall of the housing 10 and the pressing member 41.

[0064] like Fig.13 As shown, the button seat 43 includes a seat body 431 and a shaft body 432. The shaft body 432 is integrally formed with the seat body 431, and the shaft body 432 is located in the center of the seat body 431. The end of the push rod 44 is rotatably mounted on the seat body 431 through a pin. Among them, the positioning hole 111 is provided in the front shell 11, and the shaft body 432 extends out of the shell 10 through the positioning hole 111, and can move back and forth along the hole axis direction of the positioning hole 111 under the action of external pressing force. The seat body 431 is located in the shell 10 and can be set against the inner wall of the shell 10 to prevent the button 40 from falling off from the shell 10.

[0065] The pressing member 41 is a flat cap body, which is used to provide a pressing position for the operator. In a natural state, the surface of the pressing member 41 is higher than the outer wall of the housing 10. When the pressing member 41 is pressed, the shaft 432 moves linearly in the positioning hole 111, driving the push rod 44 to push the locking plate 50. The elastic member 42 accumulates force during the pressing process. After the pressing member 41 is released, the elastic member 42 rebounds, pushing the pressing member 41 to move outside the housing 10, driving the end of the push rod 44 to move to the recess of the ratchet 52.

[0066] Specifically, the elastic member 42 is a spring, which is sleeved on the portion of the shaft 432 of the button seat 43 extending out of the housing 10. Alternatively, a plurality of springs are arranged at intervals around the circumference of the shaft 432. In addition, the elastic member 42 can also be a leaf spring, a gas spring, etc.

[0067] like Fig.18 and Fig.19 As shown, the lever 30 is provided with a special-shaped hole 31, and the end of the connecting shaft 22 is inserted into the special-shaped hole 31 to have an interference fit with the lever 30. The end of the connecting shaft 22 is special-shaped, and its shape is consistent with the shape of the special-shaped hole 31. The connecting shaft 22 is inserted into the special-shaped hole 31 so that the connecting shaft 22 and the lever 30 are fixedly connected. Fig.19 As shown, the end of the connecting shaft 22 is waist-shaped, and correspondingly, the special-shaped hole 31 is a waist-shaped hole. When the operator turns the lever 30, the drum 20 moves accordingly, and the end of the traction wire installed on the drum 20 traction endoscope bends.

[0068] like Figure 2 , Figure 3 and Fig.19 As shown, the endoscope operating handle further includes a locking shaft 70. The connecting shaft 22 has a through hole 24, and at least part of the hole wall of the through hole 24 is provided with an internal thread. The locking shaft 70 is inserted into the through hole 24, and the locking shaft 70 has a threaded section, which cooperates with the internal thread.

[0069] like Figure 2 and Figure 3 As shown, a decorative sheet 71 is provided at one end of the locking shaft 70 extending out of the housing 10. The material and size of the decorative sheet 71 are consistent with the outer wall of the housing 10, so that the appearance of the entire structure is coordinated and consistent, and the aesthetics of the handle is improved. The hole wall of the through hole 24 can be partially or completely internally threaded, and the locking shaft 70 is inserted into the through hole 24 and is threadedly connected with the connecting shaft 22. When the lever 30 is in a fixed position, the locking shaft 70 is rotated in the first direction, the connecting shaft 22 moves linearly and is loosened from the special-shaped hole 31, the distance between the wheel body 21 of the drum 20 and the brake pad 60 increases, and the hand feeling when the lever 30 is rotated is relatively easy. When the lever 30 is in a fixed position, the locking shaft 70 is rotated in the opposite direction along the first direction, the connecting shaft 22 moves linearly and the length of entering the special-shaped hole 31 increases, the distance between the wheel body 21 of the drum 20 and the brake pad 60 decreases, and the hand feeling when the lever 30 is rotated is relatively heavy. Therefore, by rotating the locking shaft 70 , the hand feeling of the operator operating the lever 30 can be adjusted to meet the usage habits of different operators.

[0070] Optionally, the endoscope operating handle further includes an inlay 23, which is embedded and fixed inside the connecting shaft 22, and an internal thread is provided on the inlay 23. When the locking shaft 70 passes through the through hole 24, the thread section cooperates with the internal thread on the inlay 23. When the locking shaft 70 is rotated, the inlay 23 and the connecting shaft 22 move linearly together, so as to achieve the hand feel adjustment of the lever 30. Among them, the hole wall of the through hole 24 is provided with a groove, and the inlay 23 is inserted and fixed in the groove, so that the strength of the connecting shaft 22 is improved by the inlay 23.

[0071] The present invention also provides an endoscope, which includes an operating portion and an insertion portion connected to the operating portion, wherein the operating portion has the endoscope operating handle as described above.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An endoscope operating handle, characterized in that: include: A shell, a drum, a lever, a button, a locking disk and a brake pad, wherein the drum has a connecting shaft, the drum can be rotatably mounted on the shell, the connecting shaft passes through the shell and is fixedly connected to the lever, the brake pad and the locking disk are both sleeved on the connecting shaft, the locking disk is located on the side of the brake pad away from the drum, the button can be pressed and installed on the shell, and the button is configured to push the locking disk to rotate when pressed, so that the brake pad presses the drum to lock the drum, or the brake pad is loosened from the drum so that the drum can rotate as the lever is turned.

2. The endoscope operating handle according to claim 1, characterized in that: The inner wall of the shell is provided with a receiving groove, and the brake pad and the locking plate are both accommodated in the receiving groove. The groove wall of the receiving groove is provided with an avoidance notch, and the avoidance notch is used for the button to drive the locking plate to rotate; the groove bottom of the receiving groove is provided with a first locking tooth, and the locking plate has a second locking tooth, and the second locking tooth is in contact with the first locking tooth. As the locking plate rotates, the protrusion of the first locking tooth switches between two states: being in contact with the recess of the second locking tooth and being in contact with the protrusion of the second locking tooth.

3. The endoscope operating handle according to claim 2, characterized in that: The groove wall of the accommodating groove is provided with a locking notch, and the outer edge of the brake pad is protruding with a connecting column, and the connecting column is clamped in the locking notch. During the state switching process between the first locking tooth and the second locking tooth, the brake pad moves axially along the connecting shaft.

4. The endoscope operating handle according to claim 2, characterized in that: The protrusion of the first locking tooth or the protrusion of the second locking tooth has at least one step surface.

5. The endoscope operating handle according to claim 1, characterized in that: It also includes a push rod, a ratchet is provided on the outer periphery of the locking disk, one end of the push rod is installed on the button, and the other end of the push rod is abutted against the recess of the ratchet, so that the push rod can push the locking disk to rotate when the button is pressed.

6. The endoscope operating handle according to claim 5, characterized in that: The button includes a pressing piece, an elastic piece and a button seat. The shell is provided with a positioning hole. The button seat includes a seat body and a shaft body fixed to the seat body. The shaft body extends to the outside of the shell through the positioning hole. The push rod can be rotatably mounted on the seat body. The pressing piece is fixed to one end of the shaft body extending out of the shell. The elastic piece is clamped between the outer wall of the shell and the pressing piece.

7. The endoscope operating handle according to claim 6, characterized in that: The elastic member is a spring, and the spring is sleeved on the portion of the shaft of the button seat that extends out of the housing.

8. The endoscope operating handle according to claim 1, characterized in that: The shifting rod is provided with a special-shaped hole, and the end of the connecting shaft is inserted into the special-shaped hole to have an interference fit with the shifting rod.

9. The endoscope operating handle according to claim 8, characterized in that: It also includes a locking shaft, the connecting shaft has a through hole, the hole wall of the through hole is at least partially provided with an internal thread, the locking shaft is inserted into the through hole, the locking shaft has a threaded section, and the threaded section cooperates with the internal thread.

10. An endoscope, characterized in that: It comprises an operating portion and an insertion portion connected to the operating portion, wherein the operating portion has the endoscope operating handle according to any one of claims 1 to 9.

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